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WebSVN – planix.SVN – Blame – /os/branches/feature_fixcpp/sys/lib/dist/pc/inst/mountdist – Rev 2

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#!/bin/rc
2 
 
3 
# prereq: mountfs configdist
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# desc: locate and mount the distribution
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fn domount{
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	if(! test -e $mountmedia(2))
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		logprog $srvmedia
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	unmount /n/distmedia >[2]/dev/null
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	logprog $mountmedia
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}
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fn exitifdone{
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	if(test -f /n/dist/dist/replica/plan9.db)
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		exit
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}
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fn trycdimage{
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	if(test -f $1){
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		rm -f /srv/9660.dist
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		unmount /n/dist
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		9660srv 9660.dist >[2]/dev/null
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		logprog mount /srv/9660.dist /n/dist $1
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		exitifdone
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		mountdist=notdone
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		export mountdist
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		exit notdone
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	}
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}
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fn trycdimagebz2 {
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	if(test -f $1){
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		echo -n 'bunzip2 < '^$1^' >/n/newfs/dist/plan9.iso'
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		bunzip2 < $1 >/n/newfs/dist/_plan9.iso &&
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		mv /n/newfs/dist/_plan9.iso /n/newfs/dist/plan9.iso
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		echo
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		trycdimage /n/newfs/dist/plan9.iso
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		mountdist=notdone
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		export mountdist
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		exit notdone
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	}
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}
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fn havedist {
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	test -f $1/dist/replica/plan9.db ||
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	test -f $1/plan9.iso ||
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	test -f $1/plan9.iso.bz2
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}
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switch($1){
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case checkready
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	if(! ~ $distisfrom local && ! ~ $download done){
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		mountdist=notdone
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		export mountdist
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	}
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	if(! ~ $#mountmedia 0 1){
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		if(domount){
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			mountdist=done
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			export mountdist
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			if(mountdist checkdone)
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				exit
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		}
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		srvmedia=()
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		mountmedia=()
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		mountdist=ready
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		export srvmedia mountmedia mountdist
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	}
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case go
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	fat=()
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	ext2=()
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	x9660=()
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	fossil=()
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	echo Please wait... Scanning storage devices...
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	parts=`{ls /dev/sd??/* >[2]/dev/null | grep -v '/(plan9.*|ctl|log|raw)$'}
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	for (i in $parts) {
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		echo -n '	'^$i
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		n=`{echo $i | sed 's;/;_;g'}
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		if(! test -f /tmp/localpart.$n)
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			dd -if $i -bs 2048 -count 32 -of /tmp/localpart.$n >[2]/dev/null
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		if(isfat /tmp/localpart.$n)
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			fat=($fat $i)
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		if(isext2 /tmp/localpart.$n)
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			ext2=($ext2 $i)
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		if(is9660 /tmp/localpart.$n)
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			x9660=($x9660 $i)
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		if(isfossil $i)
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			fossil=($fossil $i)
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		echo
92 
	}
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	echo
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	echo The following storage media were detected.
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	echo Choose the one containing the distribution.
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	echo
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	for(i in $parts){
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		switch($i){
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		case $fat
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			echo 	'	'^$i^' (microsoft fat)'
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		case $ext2
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			echo 	'	'^$i^' (linux ext2)'
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		case $x9660
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			echo 	'	'^$i^' (iso9660 cdrom)'
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		case $fossil
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			echo 	'	'^$i^' (plan9 fossil)'
107 
		}
108 
	}
109 
	echo
110 
 
111 
	mountstatus=x
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	while(! ~ $mountstatus ''){
113 
		prompt -w '' 'Distribution disk' $fat $x9660 $fossil
114 
		disk=$rd
115 
 
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		srvmedia=()
117 
		mountmedia=()
118 
		switch($disk){
119 
		case $fs
120 
			mountmedia=(bind /n/newfs /n/distmedia)
121 
		case $fat
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			srvmedia=(dossrv)
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			mountmedia=(mount /srv/dos /n/distmedia $disk)
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		case $ext2
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			srvmedia=(ext2srv -r)
126 
			mountmedia=(mount /srv/ext2 /n/distmedia $disk)
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		case $x9660
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			srvmedia=(9660srv)
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			mountmedia=(mount /srv/9660 /n/distmedia $disk)
130 
		case $fossil
131 
			echo 'srv fossil.mountdist' > /tmp/fossi.conf
132 
			echo 'fsys main config '^$disk >> /tmp/fossil.conf
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			echo 'fsys main open -AWVP' >> /tmp/fossil.conf
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			echo 'fsys main' >> /tmp/fossil.conf
135 
			srvmedia=(fossil/fossil -c '. /tmp/fossil.conf')
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			mountmedia=(mount /srv/fossil.mountdist /n/distmedia)
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		case *
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			echo Unknown disk type '(cannot happen)'
139 
			exit oops
140 
		}
141 
		export srvmedia mountmedia
142 
		domount
143 
		mountstatus=$status
144 
	}
145 
 
146 
	first=yes
147 
	dir=/
148 
	while(~ $first yes || ! havedist /n/distmedia/$dir){
149 
		if(~ $first yes){
150 
			echo
151 
			echo Which directory contains the distribution?
152 
			echo 'Any of the following will suffice (in order of preference):'
153 
			echo '	- the root directory of the cd image'
154 
			echo '	- the directory containing plan9.iso'
155 
			echo '	- the directory containing plan9.iso.bz2'
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			echo 'Typing `browse'' will put you in a shell that you can use to'
157 
			echo 'look for the directory.'
158 
			echo
159 
			first=no
160 
		}
161 
 
162 
		prompt -d browse 'Location of archives'
163 
		dir=$rd
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		if(~ $dir browse){
165 
			echo This is a simple shell.  Commands are:
166 
			echo '	cd directory	- change to directory'
167 
			echo '	lc				- list contents of current directory'
168 
			echo '	exit			- exit shell'
169 
			echo
170 
			echo 'Move to the directory containing the distribution'
171 
			echo 'and then exit.'
172 
			echo
173 
			oifs=$ifs
174 
			ifs=$nl
175 
			dir=`{cdsh -r /n/distmedia}
176 
			ifs=$oifs
177 
		}
178 
		if(~ $#dir 0)
179 
			dir=safdsfdsfdsf
180 
		if(! ~ $#dir 1)
181 
			dir=$"dir
182 
		if(! havedist /n/distmedia/$dir)
183 
			echo 'No distribution found in '^`{cleanname /$dir}
184 
	}
185 
 
186 
	distmediadir=$dir
187 
	export distmediadir
188 
 
189 
case checkdone
190 
	if(! ~ $#distmediadir 1){
191 
		mountdist=notdone
192 
		export mountdist
193 
		exit notdone
194 
	}
195 
	if(! havedist /n/distmedia/$distmediadir && ! havedist /n/newfs/dist){
196 
		mountdist=notdone
197 
		export mountdist
198 
		exit notdone
199 
	}
200 
 
201 
	exitifdone
202 
 
203 
	if(test -f /n/distmedia/$distmediadir/dist/replica/plan9.db){
204 
		bind /n/distmedia/$distmediadir /n/dist
205 
		bind -a /n/dist/386/bin /bin
206 
		bind -a /n/dist/rc/bin /bin
207 
		exitifdone
208 
		mountdist=notdone
209 
		export mountdist
210 
		exit notdone
211 
	}
212 
 
213 
	trycdimage /n/distmedia/$distmediadir/plan9.iso
214 
	trycdimage /n/newfs/dist/plan9.iso
215 
 
216 
	trycdimagebz2 /n/distmedia/$distmediadir/plan9.iso.bz2
217 
	trycdimagebz2 /n/newfs/dist/plan9.iso.bz2
218 
 
219 
	mountdist=notdone
220 
	export mountdist
221 
	exit notdone
222 
}